Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 157 · 40 questions

What you do (Push back, move forward): 1. Thread the string through the straw and tie it tightly between two chairs. 2. Blow up the balloon (not too much) and pinch its neck shut. 3. Tape the balloon to the straw, neck pointing backward. 4. Let go, measure how far it goes, and keep it away from faces.

1. 1.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) a battery cell (d) sticky tape
2. 2.True or false: a battery cell is not needed for the balloon rocket. (a) True (b) False
3. 3.🎈 What is the job of the straw on the string? (a) it holds water (b) it blows air in (c) it guides the balloon (d) it makes it heavier
4. 4.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) air from the balloon (d) the balloon
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) two chairs (c) sticky tape (d) a long string
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
7. 7.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
8. 8.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a long string (d) a drinking straw
10. 10.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) two chairs (d) vinegar
12. 12.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) less friction (c) it goes faster (d) no change at all
13. 13.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it flies off the string (d) it goes less far
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a long string (d) sticky tape
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
16. 16.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
17. 17.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
18. 18.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
19. 19.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
20. 20.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
21. 21.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) the same straw (c) distance it travels
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
23. 23.🚀 Which of these goes forward? (a) the swimmer (b) gas from the rocket (c) water a swimmer pushes (d) water from the oars
24. 24.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
25. 25.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
26. 26.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) yeast (c) a balloon (d) a long string
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) backward (d) forward
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) how big we blow it (d) the same straw
29. 29.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) how big we blow it (c) the same string (d) distance it travels
31. 31.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a balloon rocket (d) a fridge magnet
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
33. 33.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) the swimmer (d) water from the oars
34. 34.True or false: air from the balloon goes backward. (a) True (b) False
35. 35.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
36. 36.True or false: the swimmer goes forward. (a) False (b) True
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
38. 38.True or false: water a swimmer pushes goes forward. (a) True (b) False
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False

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